THE ENTOMOLOGIST. 



Vol. XX.] SEPTEMBEE, 1887. [No. 292. 



ON A NEW SPECIES OF DIAPERIS FROM JAPAN. 

 By George Lewis, F.L.S. 



In June, 1873, Mr. F. Bates described a species of Diaperis 

 from Japan in the Ent. Mo. Mag., x. 14, and as at present 

 I possess but one other species from these islands, I feel justified 

 in describing it here because it may be a long time before the 

 Japanese Heteromera, as a whole, will be worked out. At this 

 time I possess over one hundred nondescript species. 



Diaperis macuUpennis, Marseul, cannot be left in Diaperis; it 

 must become the type of a new genus, for which I suggest the 

 the name of Derispia. There are three species of it (which 

 I shall shortly fully characterise) from Japan, and I have taken 

 ten other species in Ceylon. I believe representatives of the 

 genus are extremely numerous in Tropical Asia. Some are 

 concolorous or nearly so, but the greater number are yellow with 

 black markings. 



Diaperis niponensis. 



Oblonga, nigra nitida; thorace lateralibus subcanaliculato, 

 stria marginali elevata. L. 9^ — lOj mill. 



Very similar to D. boleti, Linn. ; head rugose and transversely 

 depressed between the anterior portions of the eyes. Immediately 

 behind the antennae the margins are elevated, and between the 

 antennae is a medial raised part which is not sufficiently promi- 

 nent to be called a tubercle. Thorax sparsely puncticulate, with 

 the lateral edges narrowly raised, the margins within are dilated 

 and somewhat canaliculate. Each elytron has two transverse bands 



ENTOM. — SEPT. 1887. 2 F 



